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DNA (deoxyribonuc leic acid) Allyson Lister March 2017

Introduction to DNA for Key Stage 2 (KS2)

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Page 1: Introduction to DNA for Key Stage 2 (KS2)

DNA(deoxyribonuc

leic acid)Allyson ListerMarch 2017

Page 2: Introduction to DNA for Key Stage 2 (KS2)

How many???Around 2.5 billion cells in one of your hands, but they are tiny. If every cell in your hand was the size of a grain of sand, your hand would be the size of a bus!

Each cell has its own job. But how does each cell know what job to do?

[5,6]

Page 3: Introduction to DNA for Key Stage 2 (KS2)

What is DNA for?DNA acts like a recipe, telling our bodies how to develop and how to work. There are about 1.5 gigabytes of information in each cell[2].

[2]

Page 4: Introduction to DNA for Key Stage 2 (KS2)

What does it look like?http://www.wehi.edu.au/wehi-tv/molecular-visualisations-dna

https://www.youtube.com/watch?v=QD1TjeszTHQ

Page 5: Introduction to DNA for Key Stage 2 (KS2)

There must be 1000s of recipes!!Each piece of information / recipe is carried on a different section of the DNA. These sections are called genes[1].

[3]

Page 6: Introduction to DNA for Key Stage 2 (KS2)

Building sweetie DNA: 6 Billion* pairs??!!

[2,4]* Diploid number

Page 7: Introduction to DNA for Key Stage 2 (KS2)

Your Recipe is…?

A == TC == G

Page 8: Introduction to DNA for Key Stage 2 (KS2)

Jellyfish GlowYou can get fluorescent yellows and greens from jellyfish.

You can get fluorescent reds from some corals.

[8]

Page 9: Introduction to DNA for Key Stage 2 (KS2)

What Bacteria Painting Would you Do?

[7]

Page 10: Introduction to DNA for Key Stage 2 (KS2)

Citations[1] http://kids.britannica.com/elementary/article-390730/DNA Accessed 2 March 2017.

[2] https://pdb101.rcsb.org/motm/23 Accessed 2 March 2017.

[3] https://www.pets4homes.co.uk/pet-advice/is-it-true-bengal-cats-shed-less-than-other-cats.html Accessed 2 March 2017.

[4] http://science.howstuffworks.com/life/cellular-microscopic/cell6.htm Accessed 2 March 2017.

[5] http://www.cell.com/pictureshow/skin Accessed 2 March 2017.

[6] http://www.cell.com/pictureshow/viruses Accessed 2 March 2017.

[7] http://tsienlab.ucsd.edu/HTML/Images/IMAGE%20-%20PLATE%20-%20Beach.jpg Accessed 2 March 2017.

[8] By Brocken Inaglory - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2141765 Accessed 2 March 2017.